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Refracting telescope - Wikipedia
A refracting telescope (also called a refractor) is a type of optical telescope that uses a lens as its objective to form an image (also referred to a dioptric telescope
xkcd: Telescopes: Refractor vs Reflector
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Telescopio refractor - Wikipedia, la enciclopedia libre
Un telescopio refractor es un sistema óptico centrado, que capta imágenes de objetos lejanos utilizando un conjunto de lentes en las que la luz se refracta.
Autorefractor - Wikipedia
Technique. The majority of autorefractors calculate the vision correction a patient needs (refraction) by using sensors that detect the reflections from a cone of ...
Stellarvue - The Best Hand Crafted Refractor Telescopes
Stellarvue® designs and handcrafts the best refractor telescopes for sale
ED80 80mm f/7.5 Apochromatic Refractor Telescope | Orion ...
An apochromatic refractor telescope offered at an unprecedented low price. Shop online - 100% satisfaction guaranteed!
Southern Refractories Inc.
Southern Refractories, Inc. is an independent refractory contractor and distributor founded in 1974. The company is manned and equipped to provide a wide range of ...
2015-16 Excalibur Crusade Gold Purple Refractor Karl ...
NMT to Mint Super Short Print 2015-16 Panini Preferred Karl Malone Purple and Gold Crusade Refractor Parallel #d 59/60! A MUST HAVE FOR THE TRUE FAN AND COLLECTOR!
TWR LED - Die-Cast Wall Pack, Glass Refractor LED
Outdoor/Wall Mounted/LED Wall Mounted/TWR LED - Die-Cast Wall Pack, Glass Refractor LED Outdoor Rectangular | Lithonia Lighting
Rare Sears 6345 Refractor Telescope - antiques - by owner ...
Made strictly for Sears in 1970, apparently 400 were produced. I do not know a lot about operating one, but I do know how desirable they are and what they sell for.